By tradition in Unix most services come with networking capabilities. This includes the printing server. You
don’t need to get third party software to make a printing server.

The lpd daemon allows you to print to your local printer, but also allows others to print on it, if you allow
them.

By default the printing software will read on port 515 on the UDP protocol. It will allow hosts listed in the
/etc/hosts.lpd to print using your printer.
For a full overview of the printing service, you should check the printing howto on the Web.